feat(itam): History Model for Device Software added

ref: #605 #619

app/itam/models/device_software_history.py

@@ -0,0 +1,49 @@
+from django.db import models
+
+from itam.models.device import DeviceSoftware
+from itam.models.device_history import (
+    DeviceHistory
+)
+
+
+
+class DeviceSoftwareHistory(
+    DeviceHistory
+):
+
+
+    class Meta:
+
+        db_table = 'itam_devicesoftware_history'
+
+        ordering = DeviceHistory._meta.ordering
+
+        verbose_name = 'Device Software History'
+
+        verbose_name_plural = 'Device Software History'
+
+
+    child_model = models.ForeignKey(
+        DeviceSoftware,
+        blank = False,
+        help_text = 'Model this note belongs to',
+        null = False,
+        on_delete = models.CASCADE,
+        related_name = 'history',
+        verbose_name = 'Model',
+    )
+
+    table_fields: list = []
+
+    page_layout: dict = []
+
+
+    def get_serialized_child_model(self, serializer_context):
+
+        model = None
+
+        from itam.serializers.software import SoftwareBaseSerializer
+
+        model = SoftwareBaseSerializer(self.child_model.software, context = serializer_context)
+
+        return model